20 Linux System Monitoring Tools Every SysAdmin Should Know. Need to monitor Linux server performance? Try these built-in commands and a few add-on tools. Most Linux distributions are equipped with tons of monitoring. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of a performance problem. The commands discussed below are some of the most basic commands when it comes to system analysis and debugging server issues such as: Finding out bottlenecks.Disk (storage) bottlenecks.CPU and memory bottlenecks.Network bottlenecks. #1: top - Process Activity Command The top program provides a dynamic real-time view of a running system i.e. actual process activity. Fig.01: Linux top command Commonly Used Hot Keys The top command provides several useful hot keys: => Related: How do I Find Out Linux CPU Utilization?
#2: vmstat - System Activity, Hardware and System Information Display Memory Utilization Slabinfo # vmstat -m Get Information About Active / Inactive Memory Pages. Howto add permanent static routes in Ubuntu If you're new here, you may want to subscribe to my RSS feed and if you have questions related to your ubuntu system post question to our forums. Thanks for visiting! Sponsored Link Static routing is the term used to refer to the manual method used to set up routing. An administrator enters routes into the router using configuration commands. Advantages of Static Routes Easy to configureNo routing protocol overhead Disadvantages of Static Routes Network changes require manual reconfigurationNetwork outages cannot be automatically routed aroundDoes not scale well in large networks.
Add a Static route using "route" command route add [-net|-host] <IP/Net> netmask <Mask> gw <Gateway IP> dev <Int>X Example route add -net 10.10.10.0 netmask 255.255.255.0 gw 192.168.1.1 dev eth0 route add -host 10.10.1.1 netmask 255.255.255.0 gw 192.168.1.1 dev eth0 This adds the route immediatly to the Kernel IP routing table. Route Use netstat -rn to print the Kernel IP Routing table. /etc/network/interfaces Related posts. Route Internet traffic through specific network interface? Change primary network interface & set up static IP. 20 Linux System Monitoring Tools Every SysAdmin Should Know(11 – 20) | Linux For DummiesLinux For Dummies.